PDF malware analysis — malicious · 7e26e7b1b83676ba

MALICIOUS

PDF

57.3 KB Created: 2020-08-31 05:41:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 36281687b2f61b8df9d8e2311fa30042 SHA-1: bccf014845ade7f95937e7aa9ed9180f1ec0efc3 SHA-256: 7e26e7b1b83676ba4ffa19bb0f7ee4428d4ced67803e34802733292eb37d63ea

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to static.usrfiles.com, which is flagged as a link farm. One critical heuristic identified a link to a known malicious redirector at https://ttraff.cc/wix. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to financial advice. The ML classifier strongly indicates maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://ttraff.cc/wix?keyword=thou+shall+prosper+ten+commandments+for+making+money+by+rabbi+daniel+lapin
- https://static.usrfiles.com/ugd/aff7ca_fdb7eb88f4224ce0b2f53d8eebf8630d.pdf
- https://static.usrfiles.com/ugd/f55bec_d319652263ab40c09dc1b00966c491a0.pdf
- https://static.usrfiles.com/ugd/b8c837_196c6694c5074fdab78e83b1d9110e4f.pdf
- https://static.usrfiles.com/ugd/74c34a_141576e43a7947a4a5674d41261fd7ef.pdf
- https://static.usrfiles.com/ugd/a6e5e9_fffcc213688f4be48de1137583c2449e.pdf
- https://static.usrfiles.com/ugd/b8c837_81a1a1ea9071436fa46061a6bd567d35.pdf
- https://static.usrfiles.com/ugd/60933b_06b320f51b4d4a6e847414d57a7456a8.pdf
- https://static.usrfiles.com/ugd/b8c837_6121099b4b3845219d4bbc06114877e3.pdf
- https://cdn.shopify.com/s/files/1/0434/1858/3192/files/eye_emoji_text.pdf
- https://cdn.shopify.com/s/files/1/0437/7575/4389/files/52280929493.pdf
- https://cdn.shopify.com/s/files/1/0437/6182/8001/files/mazaluwomememukadovifo.pdf
- https://static.usrfiles.com/ugd/b8c837_f17015d56a634df5932f456524ba4db4.pdf
- https://static.usrfiles.com/ugd/5ecadc_053710fb49d840098b09f79a014fc6f8.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000a060.bin` `9c77a2c16172fe03ba6a0c5d385254266109cbff9db911d34e8fcb91d06bbb29`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA060	5824 bytes
`font_01_sfnt_off0000b410.bin` `7c49b483ef4232d409184bba9315858de8002849b72df0f3c36de8ced0a9bd36`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB410	10352 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.